FOXBORO — Bill Belichick has a new wave of rising talent on his coaching staff, and the Patriots boss has a strong history of developing unknown commodities into stars.

After a near Armageddon within the staff in February, it put the spotlight on the younger, unproven assistants who were nearly thrust into more prominent roles. Belichick will now likely be more cognizant of that potential turnover as he accelerates the youth movement’s learning curve this season, simply out of the shear impracticality of keeping the group together for several more years.

Remember, owner Robert Kraft granted offensive coordinator Josh McDaniels a significant raise for the second consecutive winter to retain his services. That decision kept assistant quarterbacks coach Jerry Schuplinski and special teams coordinator Joe Judge from bolting to the Colts. The Patriots were also fortunate to keep offensive line coach Dante Scarnecchia and running backs coach Ivan Fears out of...